GRACE BROTHERS MANAGEMENT LLC - AMAG PHARMACEUTICALS INC ownership

AMAG PHARMACEUTICALS INC's ticker is and the CUSIP is 00163UAA4. A total of 20 filers reported holding AMAG PHARMACEUTICALS INC in Q2 2014. The put-call ratio across all filers is - and the average weighting 0.7%.

Quarter-by-quarter ownership
GRACE BROTHERS MANAGEMENT LLC ownership history of AMAG PHARMACEUTICALS INC
ValueSharesWeighting
Q2 2015$5,178,000
+24.5%
2,000,0000.0%10.81%
+119.1%
Q1 2015$4,158,000
+133.5%
2,000,000
+14.3%
4.93%
+197.0%
Q1 2014$1,781,0001,750,0001.66%
Other shareholders
AMAG PHARMACEUTICALS INC shareholders Q2 2014
NameSharesValueWeighting ↓
Birch Grove Capital LP 17,250,000$19,146,00010.07%
STELLIAM INVESTMENT MANAGEMENT, LP 25,500,000$28,209,0000.98%
STEELHEAD PARTNERS LLC 6,000,000$6,660,0000.69%
BASSO CAPITAL MANAGEMENT, L.P. 3,695,000$4,097,0000.64%
Bruce & Co., Inc. 2,000,000$2,200,0000.56%
Sonora Investment Management, LLC 1,525,000$1,686,391,0000.39%
Castle Creek Arbitrage, LLC 3,721,000$4,122,0000.34%
WOLVERINE ASSET MANAGEMENT LLC 18,385,000$20,380,0000.31%
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) 6,500,000$7,161,0000.28%
MIZUHO SECURITIES USA LLC 1,600,000$1,766,0000.28%
View complete list of AMAG PHARMACEUTICALS INC shareholders